Distributed JVM systems by supporting Java’s shared-memory model enable concurrent Java applications to run transparently on clusters of computers. Aiming to reduce the overheads associated to memory coherence enforcement mechanisms required in such distributed JVMs, we propose two new techniques, selective dynamic diffing and lazy home allocation. To evaluate their potential benefits, both tec...

Advances in multiprocessor interconnect technology are leading to high performance networks. However, software overheads associated with message passing are limiting the processors to get maximum performance from these networks, leading to under-utilization of network resources. Several research studies are ongoing for designing messaging protocols and hardware to reduce such overheads. However...

Partitioning applications between near-data processing (NDP) and host CPU cores causes inter-segment data movement overhead, which is caused by moving generated one segment (e.g., instructions, functions) used in other consecutive segments. Prior works take two approaches to this problem. The first approach maps segments NDP or based on the properties of each segment, neglecting overhead. secon...

Low inter-core communication overheads are critical for pipelined multithreading (PMT) to using multi-core processors (MCPs) to improve the performance of general sequential applications. However, conventional software queue based communication mechanism will bring significant communication overheads, which limit the potential performance and hinder the wide commercial use. While dedicated inte...

If parallelism can be successfully exploited in a program, signi cant reductions in execution time can be achieved. However, if sections of the code are dominated by parallel overheads, the overall program performance can degrade. We propose a framework, based on an inspector-executor model, for identifying loops that are dominated by parallel overheads and dynamically serializing these loops. ...

As part of their information management lifecycle, organizations periodically face the important and inevitable task of migrating databases from one software and hardware platform to another. Apart from ensuring accuracy and consistency, information managers of such organizations need to minimize the costs associated with the database migration process. Some of the migration tasks such as ident...

The multimedia capabilities in battery powered mobile communication devices should be provided at high energy efficiency. Consequently, the hardware is usually implemented using low-power technology and the hardware architectures are optimized for embedded computing. Software architectures, on the other hand, are not embedded system specific, but closely resemble each other for any computing de...